"open in opposite group" action (IDEA-84182)

platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/MoveEditorToOppositeTabGroupAction.java

@@ -42,11 +42,15 @@ public class MoveEditorToOppositeTabGroupAction extends AnAction implements Dumb
         final EditorWithProviderComposite editorComposite = window.getSelectedEditor();
         final HistoryEntry entry = editorComposite.currentStateAsHistoryEntry();
         ((FileEditorManagerImpl)FileEditorManagerEx.getInstanceEx(project)).openFileImpl3(siblings[0], vFile, true, entry, true);
-        window.closeFile(vFile);
+        closeOldFile(vFile, window);
       }
     }
   }
 
+  protected void closeOldFile(VirtualFile vFile, EditorWindow window) {
+    window.closeFile(vFile);
+  }
+
   @Override
   public void update(AnActionEvent e) {
     final Presentation presentation = e.getPresentation();

platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/OpenEditorInOppositeTabGroupAction.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2000-2013 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.openapi.fileEditor.impl;
+
+import com.intellij.openapi.vfs.VirtualFile;
+
+/**
+ * @author yole
+ */
+public class OpenEditorInOppositeTabGroupAction extends MoveEditorToOppositeTabGroupAction {
+  @Override
+  protected void closeOldFile(VirtualFile vFile, EditorWindow window) {
+  }
+}

platform/platform-resources-en/src/messages/ActionsBundle.properties

@@ -963,7 +963,9 @@ action.ChangeInspectionProfile.description=Change current editor inspection prof
 action.ChangeCustomizationSchema.text=Switch Customization Scheme
 action.ChangeCustomizationSchema.description=Change Current Customization Scheme
 action.MoveEditorToOppositeTabGroup.text=_Move To Opposite Group
-action.MoveEditorToOppositeTabGroup.description=Move Editor To Opposite Tab Group
+action.MoveEditorToOppositeTabGroup.description=Move editor to opposite tab group
+action.OpenEditorInOppositeTabGroup.text=_Open In Opposite Group
+action.OpenEditorInOppositeTabGroup.description=Open a copy of this editor in the opposite tab group
 action.ModuleSettings.text=Module _Settings
 action.ModuleSettings.description=Open settings dialog for selected module
 group.MoveModuleToGroup.text=Move Module to Group

platform/platform-resources/src/idea/PlatformActions.xml

@@ -472,6 +472,7 @@
       <reference ref="SplitVertically"/>
       <reference ref="SplitHorizontally"/>
       <action id="MoveEditorToOppositeTabGroup" class="com.intellij.openapi.fileEditor.impl.MoveEditorToOppositeTabGroupAction"/>
+      <action id="OpenEditorInOppositeTabGroup" class="com.intellij.openapi.fileEditor.impl.OpenEditorInOppositeTabGroupAction"/>
       <reference ref="ChangeSplitOrientation"/>
       <reference ref="PinActiveTab"/>
       <reference ref="TabsPlacementGroup"/>